<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>createApp</title>
</head>

<body>
  <div id="app">
    x: {{ position.x }} <br>
    y: {{ position.y }}
  </div>
  <script type="module">
    import { createApp } from './node_modules/vue/dist/vue.esm-browser.js'
    // createApp创建一个vue对象（可以data、props等选项）
    const app = createApp({
      data() {
        return {
          position: {
            x: 0,
            y: 0
          }
        }
      },
      mounted() {
        console.log(this.position)
      }
    })
    // 打印查看app
    console.log(app)

    app.mount('#app')
  </script>
</body>

</html>